DTC B1001 Option Configuration Error. Chevrolet PJJ 2000

For 1990-2009 cars

### Circuit Description

When the ignition is turned ON, the following things happen in no specific order. The inflatable restraint sensing and diagnostic module (SDM) compares the restraints ID that is stored in the SDM to the restraints ID that is stored in the body control module (BCM). The restraints ID that is being compared contains the last four digits of the SDM part number. The SDM compares the VIN that is stored in the SDM to the VIN that is stored in the powertrain control module (PCM) and the BCM.

### Conditions for Running the DTC

Ignition voltage is within the normal operating voltage range. (This test is only run once during power up initialization.)

### Conditions for Setting the DTC

The restraints ID that is stored in the SDM does not match the restraints ID that is stored in the BCM or the VIN information that is stored in the SDM does not match the VIN information that is stored in the PCM and the BCM.

### Action Taken When the DTC Sets

• | The SDM commands ON the AIR BAG warning lamp.

• | The SDM disables all deployments.

### Conditions for Clearing the DTC

The restraints ID that is stored in the SDM matches the restraints ID that is stored in the BCM and the VIN information that is stored in the SDM matches the VIN information that is stored in the PCM and the BCM.

### Diagnostic Aids

DTC B1001 is an indication that the restraints ID stored in both the BCM and SDM do not match or that the VIN stored in the PCM, BCM and SDM do not match. If either the BCM and/or PCM were replaced, the replacement modules need to be reprogrammed for proper operation.

### Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

1. This step checks to see if the correct VIN is programmed in the PCM.

2. This step checks to see if the correct VIN is programmed in the BCM.

3. This step checks to see that the BCM is programmed with the correct SDM part number.

#### DTC B1001 Option Configuration Error

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the SIR Diagnostic System Check performed? | -- | Go to Step 2 | Go to Diagnostic System Check - SIR

2

1. Install a scan tool.
2. Select ID Information from the Powertrain menu on the scan tool to verify that the PCM is programmed with the correct VIN by comparing the VIN that is stored in the PCM to the VIN plate of the vehicle.

Is the PCM programmed with the correct VIN?

--

Go to Step 4

Go to Step 3

3 | Replace the PCM. Refer to Powertrain Control Module Replacement 2.4L in Engine Controls. Did you complete the replacement? | -- | Go to Step 9 | --
4 | Select ID Information from the BCM menu on the scan tool to verify that the BCM is programmed with the correct VIN by comparing the VIN that is stored in the BCM to the VIN plate of the vehicle. Is the BCM programmed with the correct VIN? | -- | Go to Step 6 | Go to Step 5
5 | Replace the BCM. Refer to Body Control Module Replacement in Body Control System. | -- | Go to Step 9 | --

6

1. Select BCM ID Information and navigate to Module Information.
2. Select Controller Information and record the Last 4 Digits of SDM Part Number.
3. Select SIR Data Display Module Information 2.

Does the last 4 digits of the 8 digit GM part number match the recorded value?

--

Go to Step 8

Go to Step 7

7 | Select SIR Special Functions Setup SDM Part Number in BCM to program the BCM with the correct SDM part number. Did you complete the programming procedure? | -- | Go to Step 9 | --

8

1. Turn OFF the ignition.
2. Replace the inflatable restraint sensing and diagnostic module (SDM). Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .

Did you complete the replacement?

--

Go to Step 9

--

9

1. Reconnect all SIR components.
2. Verify that all components and connectors are properly mounted.
3. Turn ON the ignition, with the engine OFF.
4. Use the scan tool in order to clear the DTCs.

Did you complete the action?

--

Go to Diagnostic System Check - SIR

--